Thyasira obsoleta Verrill & Bush 1898
| Main Authors: | Rodrigues, Clara F., Oliver, Graham, Cunha, Marina R. |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2008
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5657679 |
Daftar Isi:
- Thyasira obsoleta (Verrill & Bush, 1898) (Fig. 26) Material examined. All from Gulf of Cadiz; two live-collected specimens, MSM01-03, stn 145 GKG 3, Porto mud volcano, 35 o 33.699 'N, 09o 30.437 'W, 3860 m, 21 April 2006 (DBUA 00831.01); one live-collected specimen MSM01-03, stn 190 MUC 8, Captain Arutyunov mud volcano, 35 o 39.665 'N, 07o 19.970 'W, 1322 m, 28 April 2006 (DBUA 00831.02); one live-collected specimen, MSM01-03, stn 241 GKG 12, Mercator mud volcano, 35 o 17.918 'N, 06o 38.717 'W, 353 m, 6 May 2006 (DBUA 00831.03); one live-collected specimen MSM01-03, stn 169 MUC 7, Carlos Ribeiro mud volcano, 35 o 47.256 'N, 08o 25.361 'W, 2199 m, 25 April 2006 (DBUA 00831.04). Remarks. All specimens are very small (not exceeding 2.0 mm) but exhibit the characteristically weakly sulcate posterior and angular outline. This is a common and widespread species recorded from across the Atlantic Ocean in depths from 24 to 2900 m (Payne & Allen 1991). It has not been associated with any particular reducing environment. Dufour (2005) classified this as having Type 2 gills with both demibranchs but showing no evidence of bacterial symbiosis.
- Published as part of Rodrigues, Clara F., Oliver, Graham & Cunha, Marina R., 2008, Thyasiroidea (Mollusca: Bivalvia) from the mud volcanoes of the Gulf of Cadiz (NE Atlantic), pp. 41-56 in Zootaxa 1752 on page 49, DOI: 10.5281/zenodo.274249